2 Samuel 24:24-25 AMPC
But King David said to Araunah, No, but I will buy it of you for a price. I will not offer burnt offerings to the Lord my God of that which costs me nothing. So David bought the threshing floor and the oxen for fifty shekels of silver.
David built there an altar to the Lord and offered burnt offerings and peace offerings. So the Lord heeded the prayers for the land, and Israel's plague was stayed.
AMPC: Amplified Bible, Classic Edition